Huawei NetCol5000-A050 User Manual page 250

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Alarm
ID
A295-0
2
A296-0
1
A296-0
2
A297-0
8
Issue 08 (2021-09-17)
Alarm Name Alar
m
Seve
rity
Outdoor fan MAJ
fault OR
EEV low MAJ
superheat OR
degree alarm
EEV low CRITI
superheat CAL
degree alarm
The main MAJ
control OR
module is
faulty
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
1. The
overtemperature
feedback cable to
the outdoor fan is
loose.
2. The outdoor
unit is dirty or
blocked.
3. The outdoor fan
is faulty.
4. The outdoor fan
drive is faulty.
1. The electronic
expansion valve
(EEV) coil is loose.
2. The EEV coil is
faulty.
3. The cables to
the electronic
expansion valve
coil are loose or
damaged.
4. The EEV is
faulty.
1. The electronic
expansion valve
(EEV) coil is loose.
2. The EEV coil is
faulty.
3. The EEV is
faulty.
4. The cables to
the electronic
expansion valve
coil are loose or
damaged.
The main control
module is faulty.
9 Alarm Reference
Solution
1. Secure the
overtemperature
feedback cable.
2. Clear obstacles from
the outdoor fan to
ensure that it works
properly.
3. Replace the outdoor
fan.
4. Replace the outdoor
fan drive.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Check and maintain
the cables to the EEV
coil.
4. Replace the EEV.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Replace the EEV.
4. Check and maintain
the cables to the EEV
coil.
1. Replace the main
control module.
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